static void *etx_beacon(void *arg)
{
(void) arg;
/*
* Sends a message every ETX_INTERVAL +/- a jitter-value (default is 10%) .
* A correcting variable is needed to stay at a base interval of
* ETX_INTERVAL between the wakeups. It takes the old jittervalue in account
* and modifies the time to wait accordingly.
*/
etx_probe_t *packet = etx_get_send_buf();
uint8_t p_length = 0;
while (true) {
thread_sleep();
mutex_lock(&etx_mutex);
//Build etx packet
p_length = 0;
for (uint8_t i = 0; i < ETX_BEST_CANDIDATES; i++) {
if (candidates[i].used != 0) {
packet->data[i * ETX_TUPLE_SIZE] =
candidates[i].addr.uint8[ETX_IPV6_LAST_BYTE];
packet->data[i * ETX_TUPLE_SIZE + ETX_PKT_REC_OFFSET] =
etx_count_packet_tx(&candidates[i]);
p_length = p_length + ETX_PKT_HDR_LEN;
}
}
packet->length = p_length;
/* will be send broadcast, so if_id and destination address will be
* ignored (see documentation)
*/
sixlowpan_mac_send_ieee802154_frame(0, NULL, 8, &etx_send_buf[0],
ETX_DATA_MAXLEN + ETX_PKT_HDR_LEN, 1);
DEBUG("sent beacon!\n");
etx_set_packets_received();
cur_round++;
if (cur_round == ETX_WINDOW) {
if (reached_window != 1) {
//first round is through
reached_window = 1;
}
cur_round = 0;
}
mutex_unlock(&etx_mutex);
}
return NULL;
}
void etx_beacon(void) {
/*
* Sends a message every ETX_INTERVAL +/- a jitter-value (default is 10%) .
* A correcting variable is needed to stay at a base interval of
* ETX_INTERVAL between the wakeups. It takes the old jittervalue in account
* and modifies the time to wait accordingly.
*/
etx_probe_t * packet = etx_get_send_buf();
uint8_t p_length = 0;
/*
* xxx If you get a -Wmissing-braces warning here:
* A -Wmissing-braces warning at this point is a gcc-bug!
* Please delete this information once it's fixed
* See: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53119
*/
ieee_802154_long_t empty_addr = { 0 };
while (true) {
thread_sleep();
mutex_lock(&etx_mutex);
//Build etx packet
p_length = 0;
for (uint8_t i = 0; i < ETX_BEST_CANDIDATES; i++) {
if (candidates[i].used != 0) {
packet->data[i * ETX_TUPLE_SIZE] =
candidates[i].addr.uint8[ETX_IPV6_LAST_BYTE];
packet->data[i * ETX_TUPLE_SIZE + ETX_PKT_REC_OFFSET] =
etx_count_packet_tx(&candidates[i]);
p_length = p_length + ETX_PKT_HDR_LEN;
}
}
packet->length = p_length;
send_ieee802154_frame(&empty_addr, &etx_send_buf[0],
ETX_DATA_MAXLEN+ETX_PKT_HDR_LEN, 1);
DEBUG("sent beacon!\n");
etx_set_packets_received();
cur_round++;
if (cur_round == ETX_WINDOW) {
if (reached_window != 1) {
//first round is through
reached_window = 1;
}
cur_round = 0;
}
mutex_unlock(&etx_mutex,0);
}
}
